Click on the third or sixth rank to set the en passant target square.

EGTB: win in 11 half-moves

# move score
1 Rb7 win in 10 half-moves
2 Ra8 win in 14 half-moves
3 Rb1 loss in 2 half-moves
4 Rb2 loss in 2 half-moves
5 Rb3 loss in 2 half-moves
6 Rb4 loss in 2 half-moves
7 Rb5 loss in 2 half-moves
8 Rb6 loss in 2 half-moves
9 Rc8 loss in 2 half-moves
10 Rd8 loss in 2 half-moves
11 Re8 loss in 2 half-moves
12 Rf8 loss in 2 half-moves
13 Rg8 loss in 2 half-moves
14 Rh8 loss in 2 half-moves